Blue methamphetamine is the product and cash is the currency, but the fuel that powers Walter White's drug empire on Breaking Bad is blood. When creator Vince Gilligan's modern crime masterpiece returns for its final suite of eight episodes this Sunday, it'll be the final stage of the journey for kindly schoolteacher Mr. White – and the murders committed by Walt, his allies and his enemies have served as signposts along the way. Some are spectacular, others subdued, but none are simply sensationalistic: each killing reveals something about the killer, the victim or the world they inhabit. Read our list of the show's 10 most memorable murders to see which kills made the cut.